package com.anarcoding.util;

/*
 * Copyright (c) 2012, AnarCoding
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
 * conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */

import java.util.HashMap;
import java.util.Map;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Monitor;
import org.eclipse.swt.widgets.Shell;

public class SWTUtil {
	
	private static Map<Shell, Listener> shellListenerMap;
	
	static{
		shellListenerMap = new HashMap<Shell, Listener>();
	}
	
	public static void initCentralizedShell( Shell shell ) {
		Monitor primary = shell.getDisplay().getPrimaryMonitor();
		
		Rectangle bounds = primary.getBounds();
		Rectangle rect = shell.getBounds();

		int x = bounds.x + (bounds.width - rect.width) / 2;
		int y = bounds.y + (bounds.height - rect.height) / 2;

		shell.setLocation( x, y );

		initShell(shell);
	}
	
	public static void initShell( Shell shell ){
		
		shell.open();
		shell.layout();

		while( !shell.isDisposed() ) {
			if( !shell.getDisplay().readAndDispatch() ) {
				shell.getDisplay().sleep();
			}
		}
		
	}
	
	public static void initMaximizedShell( Shell shell ){
		
		shell.setMaximized(true);
		
		initShell(shell);
		
	}

	public static void openDialog( Shell parent, String titulo, String mensaje, int swtIconType ) {
		MessageBox messageBox = new MessageBox( parent, SWT.OK | swtIconType );
		messageBox.setText( titulo );
		messageBox.setMessage( mensaje );
		messageBox.open();
	}
	
	public static void addShellKeyShorcuts( Shell shell, ACListenerAdapter listener ){
		Listener listen = shellListenerMap.get(shell);
		
		if ( listen == null){
			shellListenerMap.put(shell, listener);
			
			shell.getDisplay().addFilter(SWT.KeyDown, listener);
		}
		
		
	}
	
	public static void removeShellKeyShortcuts( Shell shell ){
		Listener listener = shellListenerMap.remove(shell);
		
		if (listener != null)
			shell.getDisplay().removeFilter(SWT.KeyDown, listener);
		
	}
	
	
}